VOC Tswj Hauv Kev Lag Luam Roj Hmab

VOC tswj hauv lubroj hmab kev lag luam

-- cov qauv emission ua rau kev hloov pauv ntsuab

VOCs hauv kev lag luam roj hmab yog tsim nyob rau hauv ntau qhov sib txuas. Nyob rau hauv cov txheej txheem raw khoom, cov khoom siv qis-molecular organic muaj nyob rau hauv cov roj hmab ntuj thiab cov tshuaj monomer uas tseem tshuav hauv kev tsim cov roj hmab hluavtaws tau pib volatilize. Hauv kev sib xyaw ua ke, qee cov khoom xyaw ntawm cov roj hmab softeners, accelerators, antioxidants thiab lwm yam additives khiav tawm hauv qhov kev txiav txim siab kub. Piv txwv li, feem ntau siv cov tshuaj tsw qab roj softener yuav tso cov tshuaj tsis haum thaum sib tov. Nyob rau hauv cov txheej txheem vulcanization, cov khoom qis-molecular organic los ntawm cov khoom tsim los ntawm cov tshuaj tiv thaiv ntawm cov kab txuas txuas thiab cov vulcanization accelerators kuj yog ib qho tseem ceeb ntawm VOCs. Piv txwv li, sulfur vulcanization system yuav tsim sulfur-muaj organic compound volatiles. Cov volatiles no muaj ntau yam khoom, feem ntau ntawm cov uas muaj ntxhiab hydrocarbons xws li benzene, toluene, thiab xylene. Lawv yog cov neeg sawv cev ntawm VOCs hauv kev lag luam roj hmab.

1. VOC, VOC yog dab tsi hauv kev lag luam roj hmab?

VOC (volatile organic compounds) nyob rau hauv kev lag luam roj hmab yog hais txog cov organic tebchaw uas yog volatilized los ntawm raw cov ntaub ntawv, additives thiab ntau lawm txheej txheem thaum lub sij hawm cov roj hmab ntau lawm txheej txheem. Cov tebchaw no yog volatile thiab muaj vapor siab nyob rau hauv chav tsev kub. Piv txwv li, cov kuab tshuaj organic siv hauv kev ua cov roj hmab, cov tshuaj muaj ntxhiab hydrocarbons xws li benzene, toluene, thiab xylene, nrog rau cov khoom siv organic muaj nyob rau hauv qee cov roj hmab softeners thiab plasticizers, tag nrho cov poob rau hauv qeb ntawm VOC.

2. VOCs hauv kev lag luam roj hmab tuaj qhov twg?

Cov khoom siv raw: Cov roj hmab ntuj nws tus kheej muaj qee qhov qis-molecular organic Cheebtsam, uas yuav volatilize thaum lub sijhawm ua. Hauv cov txheej txheem tsim cov roj hmab hluavtaws, monomer thiab additive residues kuj yuav dhau los ua qhov chaw ntawm VOC. Piv txwv li, ua tsis tiav reacted styrene monomer nyob rau hauv zus tau tej cov styrene-butadiene roj hmab.

Kev pab cuam: Muaj ntau cov additives yog siv rau hauv cov roj hmab sib tov, vulcanization thiab lwm yam txheej txheem, xws li roj hmab softeners (xws li roj tsw qab), accelerators, antioxidants, thiab lwm yam. Nyob rau hauv high-temperature processing tej yam kev mob, ib co ntawm cov additives yuav volatilize. los ua VOCs. Piv txwv li, thaum lub sij hawm sib tov ntawm cov roj uas muaj ntxhiab, vim qhov kub thiab txias, cov khoom tsis haum nyob rau hauv nws yuav emissions mus rau saum huab cua.

Vulcanization txheej txheem: Vulcanization yog ib kauj ruam tseem ceeb hauv kev ua roj hmab. Thaum lub sij hawm vulcanization txheej txheem, crosslinking agents thiab vulcanization accelerators nyob rau hauv cov roj hmab yuav raug tshuaj lom neeg. Cov txheej txheem no yuav tsim qee cov khoom lag luam qis molecular organic, uas yuav raug tso tawm hauv daim ntawv ntawm VOCs. Piv txwv li, thaum siv sulfur vulcanization system, sulfur-muaj organic compound volatiles yuav raug tsim.

3. Dab tsi yog qhov phom sij ntawm VOC hauv kev lag luam roj hmab?

• Kev phom sij rau tib neeg kev noj qab haus huv

Benzene series (xws li benzene, toluene, thiab xylene) hauv kev lag luam roj hmab VOC yog cov tshuaj lom thiab muaj teeb meem. Kev raug benzene ntev ntev tuaj yeem ua rau muaj qhov txawv txav ntawm hematopoietic thiab ua rau muaj kab mob loj xws li leukemia. Toluene thiab xylene tuaj yeem ua rau lub hauv paus paj hlwb thiab ua rau cov tsos mob xws li kiv taub hau, mob taub hau, xeev siab, thiab ntuav.

Qee cov tshuaj chlorine-muaj VOCs (xws li chlorinated hydrocarbons uas yuav raug tsim thaum lub sij hawm ua cov chloroprene roj hmab) tuaj yeem ua rau lub cev puas tsuaj xws li daim siab thiab ob lub raum tom qab nkag mus rau tib neeg lub cev.

• Environmental phom sij

VOCs koom nrog cov tshuaj tiv thaiv photochemical hauv cov huab cua los tsim ozone (O₃) thiab cov organic aerosols theem nrab (SOA). Ozone yog ib qho muaj zog oxidant uas tuaj yeem ua rau cov nroj tsuag puas tsuaj, xws li ua rau cov nplooj nplooj tig daj thiab kev loj hlob mus rau stunted. Nyob rau tib lub sijhawm, qhov siab ntawm ozone tuaj yeem ua rau tib neeg ua pa ua pa thiab ua rau cov kab mob ua pa.

Thib ob cov organic aerosols tuaj yeem txo qis atmospheric visibility, ua rau muaj huab cua daj cua dub, cuam tshuam rau huab cua zoo thiab kev hloov pauv huab cua.

4. Cov qauv emissions thiab tswj kev ntsuas yog dab tsi?

Emission qauv

Hauv Suav teb, Cov Khoom Siv Roj Hmab Kev Lag Luam Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob (GB 27632 - 2011) tau tsim cov kev cai rau VOC emissions hauv kev lag luam roj hmab. Piv txwv li, muaj qhov yuav tsum tau ua kom pom tseeb rau qhov txwv tsis pub tshaj tawm ntawm cov tsis muaj methane tag nrho cov hydrocarbons los ntawm cov roj hmab refining units thiab vulcanization units. Cov emission txwv tsis pub muaj methane tag nrho cov hydrocarbons los ntawm roj hmab refining units yog 10mg / m³ (organized emissions).

• Teb chaws USA

National emission qauv: US Environmental Protection Agency (EPA) tau tsim cov qauv emission cuam tshuam. Piv txwv li, thaum lub Kaum Ib Hlis 2023, EPA tau tshaj tawm tsab ntawv pom zoo los hloov kho cov qauv kev tso tawm hauv lub tebchaws rau cov pa phem pa phem hauv kev lag luam roj hmab log tsheb, thov kom tsim kom muaj kev tswj xyuas qhov siab tshaj plaws (MACT) txwv rau tag nrho cov hydrocarbons (THC) rau kev ua cov roj hmab. qeb sub.

Kev lag luam emission qauv: Cov tsoomfwv txawv tebchaws tuaj yeem tsim VOCs emission tswj cov qauv nruj dua raws li lawv tus kheej cov xwm txheej, yog tias lawv ua raws li tsoomfwv cov qauv. Piv txwv li, qee lub xeev muaj cov kev cai ntxaws ntxiv ntawm cov khoom siv xau thiab cia lub tank ua pa tawm ntawm cov tuam txhab roj hmab.

Cov tshuaj tswj tshwj xeeb thiab txwv: nruj emission concentration thiab emission txwv yog teem rau teeb meem tshuaj xws li benzene, toluene, thiab xylene. Cov tuam txhab lag luam yuav tsum ua raws li lawv nruj me ntsis, txwv tsis pub lawv yuav raug nplua raws li txoj cai. 2.

• European Union

TS EN ISO 10580: 2012: Qhia meej txog cov kev cai emission ntawm volatile organic compounds (VOC) rau elastic fabrics thiab laminate pem teb npog. Yog tias cov khoom siv roj hmab siv los tsim cov khoom zoo li no, lawv yuav tsum ua kom tau raws li VOC emission txwv cov cai hauv tus qauv 3.

Integrated Pollution Prevention and Control Directive (IPPC): yuav tsum muaj kev lag luam kev lag luam kom ua tiav cov kev ntsuas los tiv thaiv thiab tswj cov pa phem, thiab tswj cov txheej txheem tsim khoom, kev tu cov cuab yeej siv, thiab kev kho cov roj khib nyiab ntawm kev lag luam roj hmab kom txo tau cov pa phem xws li VOCs. Cov tuam txhab lag luam yuav tsum ua tiav cov qauv kev ua tau zoo ib puag ncig los ntawm kev siv cov thev naus laus zis zoo tshaj plaws (BAT), uas qhia meej txog kev ntsuas thiab kev tswj hwm rau VOC emission txo nyob rau hauv ntau yam txheej txheem roj hmab.

• Nyiv

JIS A 1903: 2008 thiab JIS A 1903: 2015: Ob qho qauv no qhia txog txoj kev txiav txim siab ntawm qhov tsis zoo ntawm cov organic compound (VOC) emissions los ntawm lub tsev cov khoom. Lawv siv txoj hauv kev los ntsuas thiab ntsuas VOC emissions los ntawm cov khoom siv roj hmab thiab lwm yam khoom siv hauv tsev, muab lub hauv paus rau kev tswj VOC emissions los ntawm cov khoom siv roj hmab siv hauv kev tsim kho.

5. Yuav ua li cas tswj kev ntsuas? (Kev tswj qhov chaw, kev tswj cov txheej txheem, kev tswj qhov kawg ntawm cov yeeb nkab)

Tswj ntsuas

- ** Kev tswj hwm qhov chaw **: Xaiv cov khoom siv raw thiab cov khoom ntxiv nrog cov ntsiab lus VOC tsawg. Piv txwv li, siv ib puag ncig tus phooj ywg roj hmab softeners los hloov cov roj tsw qab ib txwm siv los txo VOC tiam. Hauv kev tsim cov roj hmab hluavtaws, ua kom zoo dua cov txheej txheem polymerization, nce tus nqi hloov pauv monomer, thiab txo cov ntsiab lus monomer seem.

- ** Kev tswj hwm txheej txheem **: Txhim kho qhov cua tshuab thaum lub sijhawm tsim khoom. Txhim kho cov roj ntim cov hoods thiab cov cua tso cua hauv cov roj hmab sib xyaw rhiav thiab vulcanization Rhiav kom sau cov VOCs tsim thiab kho lawv. Nyob rau tib lub sijhawm, ua kom zoo dua cov txheej txheem vulcanization tsis xws li qhov kub thiab txias thiab lub sijhawm los txo VOCs tsim los ntawm vulcanization ntau dhau.

- ** Kev kho qhov kawg ntawm cov yeeb nkab **: Siv ntau yam kev kho VOC technologies, xws li adsorption, catalytic combustion, thiab kev kho mob lom. Txoj kev siv adsorption siv cov adsorbents xws li cov pa roj carbon activated rau adsorb VOC, thiab cov roj purified ua tau raws li cov qauv emission. Txoj kev catalytic combustion yog hlawv thiab decompose VOC rau hauv carbon dioxide thiab dej ntawm qhov kub thiab txias nyob rau hauv qhov kev txiav txim ntawm catalyst. Kev kho mob zoo yog siab, tab sis yuav tsum tau them nyiaj mloog mus rau kev xaiv thiab kev saib xyuas ntawm cov catalyst. Txoj kev kho kab mob lom siv cov metabolism hauv cov kab mob kom decompose VOC. Nws muaj qhov zoo ntawm tus nqi qis thiab tsis muaj kev ua qias tuaj thib ob, tab sis kev kho kom zoo yog qhov tsawg thiab tsim nyog rau kev kho mob ntawm VOC-concentration tsawg.

• Nrog rau kev paub txog kev tiv thaiv ib puag ncig thiab kev ceev ntawm kev tswj hwm ib puag ncig, emission qauv rau kev lag luam roj hmab tau tshwm sim. Tsav los ntawm qhov xwm txheej tiv thaiv ib puag ncig hauv tsev thiab txawv teb chaws, cov kev taw qhia txog txoj cai tseem ceeb tau ua rau kev tso tawm "Cov Qauv Cai Rau Cov Khoom Uas Muaj Cai Rau Cov Khoom Siv Roj Hmab" (GB 27632 - 2011). Cov qauv no muaj cov kev cai nruj thiab ntxaws txog VOC emissions hauv kev lag luam roj hmab. Nyob rau hauv cov nqe lus ntawm emission txwv ntawm non-methane tag nrho cov hydrocarbons, lub koom haum emission txwv ntawm cov roj hmab refining chav tsev yog 10mg / m³, thiab lub vulcanization chav tsev kuj muaj sib xws cov kev txwv kom meej meej.

• Rau cov emissions unorganized, qhov concentration txwv ntawm qhov chaw saib xyuas nyob rau hauv lub Hoobkas ciam teb kuj tau teev tseg. Tsis tas li ntawd, tus qauv tso rau pem hauv ntej cov kev cai rau kev saib xyuas kev lag luam thiab kev saib xyuas. Cov tuam txhab lag luam yuav tsum tau saib xyuas ntawm cov kev soj ntsuam tshwj xeeb ntawm qhov ntau zaus, thiab teeb tsa cov cuab yeej saib xyuas tsis siv neeg rau cov pa paug tawm mus rau lub chaw tiv thaiv ib puag ncig kom ntseeg tau tias cov ntaub ntawv emission yog pob tshab thiab taug qab, thiab tswj hwm VOC emission tus cwj pwm ntawm cov tuam txhab roj hmab.

Thaum ua kom ntseeg tau tias peb muab cov kev daws teeb meem sib khi rau peb cov neeg siv khoom,peb(Lindepolymer) kuj nruj me ntsis siv lub teb chaws thiab thoob ntiaj teb cov qauv ib puag ncig.